Krebs and glycolysis

Question 1

Energy is stored as what and what is it managed by?

Answer 1

Atp and managed by catabolic and anabolic rxns

Question 2

Catabolic aka

Answer 2

exergonic

Question 3

Anabolic aka

Answer 3

energonic

Question 4

often coupled together. happen one after the other

Answer 4

exergonic and anabolic rxns

Question 5

Energy is managed in the form of

Answer 5

of chemical reactions that involve the making and breaking of bonds and the transfer of electrons:

Exergonic reactions release energy, making it available for cellular work.

Endergonic reactions are driven forward with the addition of energy.

Exergonic and endergonic reactions are often coupled so that released energy is immediately put to work

Question 6

Cells possess specialized enzyme systems that trap the energy present in the bonds of nutrients as they are progressively broken:

Answer 6

Energy released during exergonic reactions is stored in high-energy phosphate bonds in ATP.

ATP temporarily stores and releases the energy in these chemical bonds to fuel endergonic reactions.

Question 7

Describe aerobic respiration

Answer 7

A series of reactions that converts glucose to CO2 and allows the cell to recover significant amounts of energy

Utilizes glycolysis, the Krebs cycle, and the electron transport chain

Relies on free oxygen as the final electron and hydrogen acceptor

Characteristic of many bacteria, fungi, protozoa, and animals

Question 8

Aerobic respiration Utilizes glycolysis, the Krebs cycle, and the

Answer 8

electron transport chain

Question 9

What does aerobic respiration relie on

Answer 9

on free oxygen as the final electron and hydrogen acceptor

Question 10

Anaerobic Respiration:
Involves glycolysis

Answer 10

Krebs cycle, and the electron transport chain

Question 11

What does anaerobic respiration use

Answer 11

Uses NO3-, SO42-, CO33-, and other oxidized compounds as final electron acceptors

Question 12

Anaerobic Respiration is strictly used by

Answer 12

strictly anaerobic organisms and those who are able to metabolize with or without oxygen

Question 13

Describe fermentation

Answer 13

Incomplete oxidation of glucose
Oxygen is not required.
Organic compounds are final electron acceptors

Question 14

NAD and FAD are cojugated enzymes having

Answer 14

2 coenzymes

Question 15

Catabolism of glucose

Answer 15

aerobic: all aerobic microbes (fungi, bacteria, and helminths)

anaerobic-all anaerobic microbes (intestinal bacteri and aerobic bacteria)

Fermentation- (yeast) able to break down glucose to either aerobic or anaerobic